Question Q235 weldability of carbon steel. What are the welding characteristics of those electrodes?
Acid, alkaline welding rod can be. The acid welding rod E4303 has the advantages of good manufacturability, easy operation and poor mechanical performance. The basic electrode E5015 has poor mechanical properties and needs a DC welding machine with good mechanical properties.
Q235 belongs to low carbon structural steel. Better welding process. The following welding electrodes can be used:1: Brand: J422, model: E4303 titanium calcium type low carbon structural steel welding rod. (acid electrode, AC and DC).2: Brand: J426, model: E4316, low hydrogen and low carbon structural steel welding rod. (basic electrode, AC and DC).3: Brand: J427, model: E4315 low hydrogen sodium type low carbon structural steel welding rod. Basic electrode. DC reverse connection).
Q235 steel is an ordinary carbon steel with a yield strength of about 235. It can be made of low carbon steel structural welding rod. J422 can be welded with J506 or J507 when it is used to weld important steel structuresJ422 welding electrode is common name, corresponding to international standard brand E4303. It is a kind of acid welding rod, the coating is made of titanium and calcium, and J stands for structural steel welding rod. 42 is the tensile strength of 42kg/mm2 weld metal, and the tensile strength of molten steel is not less than 420MPa.Main application: used for welding low carbon steel structures with low strength and low strength. They are generally used for welding steel structures and welding of ordinary carbon steel pipes.J422 welding rod diameter ranging from 2.5mm to 6.0mm, can be carried out in all position welding, AC and DC dual-use. With excellent welding process performance and mechanical properties, stable arc, less spatter, easy slag removal, beautiful weld formation.
Preferably 58-1 basic electrode, the welding rod has high tensile strength, good toughness, can be AC and DC, all position welding
